Porridge:
1/2 cup of rolled oats
1 cup water. You can add milk pwder or substitute some water with milk.
Boil gently till blended. You can add butter, cinnamon and or fruit, sugar honey.
We had some Czech guests who were riding their bicycles around the world, so were travelling light. They were basically living on oats and were balls of energy. Maybe you need more exercise.
I think my diet has affected my mind a bit so I'd like to remedy that.
Could it be that your mind is affecting your diet?